DocumentCode
1190377
Title
Control of large magnetocaloric effects and hysteresis of La1-zCez(Fe0.86Si0.14)13 compounds
Author
Fujieda, S. ; Fujita, A. ; Fukamichi, K.
Author_Institution
Dept. of Mater. Sci., Tohoku Univ., Sendai, Japan
Volume
41
Issue
10
fYear
2005
Firstpage
2787
Lastpage
2789
Abstract
In order to improve the magnetocaloric effects (MCEs), the partial substitution of Ce for La in the La(Fe0.86Si0.14)13 has been examined. The MCEs in the La0.7Ce0.3(F0.86Si0.14)13 are much larger than those in the La(Fe0.86Si0.14)13. The hysteresis loss due to the itinerant-electron metamagnetic transition of the La0.7Ce0.3(Fe0.86Si0.14)13 is smaller than that of La(Fe0.88Si0.12)13, though their MCEs are almost the same. Similar results are obtained in the case of z<0.3. Accordingly, La1-zCez(Fe0.86Si0.14)13 compounds are useful for high-performance magnetic refrigerants.
Keywords
cerium compounds; iron compounds; lanthanum compounds; magnetic cooling; magnetic hysteresis; magnetic transitions; metamagnetism; La0.7Ce0.37(Fe0.86Si0.14)13; La1-zCez(Fe0.86Si0.14)13 compounds; itinerant-electron metamagnetic transition; large magnetocaloric effects; magnetic cooling; magnetic hysteresis; magnetic transitions; metamagnetism; Cooling; Entropy; Iron; Isothermal processes; Magnetic field measurement; Magnetic hysteresis; Refrigerants; Refrigerators; Superconducting magnets; Temperature dependence; Adiabatic temperature change; hysteresis loss; itinerant-electron metamagnetic transition; magnetic entropy change; magnetocaloric effects; relative cooling power;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2005.854775
Filename
1519122
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